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Topband: Top Loading wires

To: "Topband Reflector" <topband@contesting.com>
Subject: Topband: Top Loading wires
From: "Larry - K1UO" <k1uo@tds.net>
Date: Wed, 4 Feb 2015 10:27:15 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Could someone tell me the length of top loading wires (4 wires planned) needed 
to add to the top of a base insulated 90 foot Rohn 25g tower to maximize the 
radiation resistance on 160 meters.  I understand there is a point of 
diminishing returns on the top loading lengths.  The 4 wire angles will be 
around 45 degrees or as close as possible.    If I knew how to model ,or even 
had a modeling program, I would attempt this already relatively simple task to 
many.  
From 50+ years of practical experience, I am ‘guessing’ maybe 28 feet long each?



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